Observation of the universal magnetoelectric effect in a 3D topological insulator
The electrodynamics of topological insulators has been predicted to show a new magnetoelectric term, but this hasn’t been observed. Here, Dziomet al. observe a universal Faraday rotation angle equal to the fine structure constant, evidencing the so-called topological magnetoelectric effect.
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2017-05-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/ncomms15197 |